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Finding the Fourth Proportional to 8,576.80, 12,865.20 and 7,483.30

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Solution

The fourth proportional to 8,576.80, 12,865.20 and 7,483.30 is: 11,224.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.80 : 12,865.20 = 7,483.30 : x
  2. Step 2: Convert to fraction form
    8,576.80/12,865.20 = 7,483.30/x
  3. Step 3: Cross multiply
    8,576.80x = 12,865.20 × 7,483.30
  4. Step 4: Simplify right side
    8,576.80x = 96,274,151.16
  5. Step 5: Solve for x
    x = 96,274,151.16/8,576.80
  6. Step 6: Final answer
    x = 11,224.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.